This site is intended to help you make changes to your pinball machines, primarily by hacking ROM files. It is not intended to be a repository of ROMs, but rather tools and instructions that empower you to hack freely available ROMs yourself.

The site is inspired largely by the generosity of its initial contributor, mrglee, who has decided to share some of his tools and source code that he uses to hack Williams/Bally WPC ROMs.

I hope that you find it useful, and please feel welcome to join in the discussion and let us know what brings you here.